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Race or trail, the 780 rear derailleur is the clear winner. Its lightweight construction, along with the Shimano exclusive Shadow design, is perfect for just about any style of riding. Plus, its Dyna-sys cable pull improves stability and ease of adjustment on an already impeccable drivetrain series.

Low profile Shadow design

10 speed

Compatible with Shimano Dyna-sys shifters

Consistent shifting performance

Linear shift effort

GS cage is recommended for 2x10 drivetrains

SGS cage is recommended for 3x10 drivetrains

Weight: 230g(approx)

Please Note: This is marked an OE Item because it lacks original packaging. The item has never been installed or used.

I installed this as part of a 1x10 setup on a new build. Frankly when I saw this derailleur, the SLX shifter set on sale and the SLX cranks for $89, I knew...Read complete review

I installed this as part of a 1x10 setup on a new build. Frankly when I saw this derailleur, the SLX shifter set on sale and the SLX cranks for $89, I knew I had my next drivetrain lined up. To review this RD specifically, all I can say is "typical Shimano quality". Shifts crisply and positively, reasonable weight, and generally durable, although I have not had it long. I'd say the best part is how quickly and easily it sets up. Mount it, tension cable slightly, and adjust. It's fairly typical for Shimano but still impresses me.I used the mid cage length, 32T front with a 11-36 cassette, very happy with this arrangement.I gave the product four out of five stars only because it's not the newer clutch design. It is still an excellent choice for upgrade or new build, especially considering the price.

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Most Liked Negative Review

XT rear deraileur

This item needs a better description because it would not work correctly with my Shimano drivetrain and I had to return it, costing me $11.00It was installed by LBS but it would...Read complete review

This item needs a better description because it would not work correctly with my Shimano drivetrain and I had to return it, costing me $11.00It was installed by LBS but it would not work correctly. The pulleys were too close to the cassette.

Works great on my 1x10 especially with the clutch system! Prevents chain slap, keeps the chain on without a chain guide, and is a set it and forget it kind of deal! Only thing "better" is XTR.. just a little bit lighter, but hey, who needs that?

I've been an XT fan for years, because they have lasted me years of heavy abuse. I hear the SRAM derailleurs may shift smoother, but when durability is more important to me than marginal functional improvements and potentially lighter weight. Although this derailleur came out of box, it arrived "in box" condition. For the price, couldn't get better.

I use it for cross-country and all mountain riding. I set the derailleur up in about 15 minutes! It shifts faster than any other product I've had on my bike and shifts smooth, no matter the conditions. I would highly recommend this product to everyone.

After smashing my XT derailleur about a dozen times it finally succumbed to a branch that got wedged in the rear wheel. I bought a new one on Jenson for a great price, installed it in less than 5 minutes and am now riding and smashing into rocks again. Great piece of equipment, like all of Shimano's stuff.

I installed this as part of a 1x10 setup on a new build. Frankly when I saw this derailleur, the SLX shifter set on sale and the SLX cranks for $89, I knew I had my next drivetrain lined up. To review this RD specifically, all I can say is "typical Shimano quality". Shifts crisply and positively, reasonable weight, and generally durable, although I have not had it long. I'd say the best part is how quickly and easily it sets up. Mount it, tension cable slightly, and adjust. It's fairly typical for Shimano but still impresses me.I used the mid cage length, 32T front with a 11-36 cassette, very happy with this arrangement.I gave the product four out of five stars only because it's not the newer clutch design. It is still an excellent choice for upgrade or new build, especially considering the price.

This item needs a better description because it would not work correctly with my Shimano drivetrain and I had to return it, costing me $11.00It was installed by LBS but it would not work correctly. The pulleys were too close to the cassette.

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